and you can sit there and smile. >> when brian bardo came back and pointed a finger at darin, the family went ballistic. even darlie lynn wrote me a letter and said you need to think about what you're doing. i have to admit, i wrote back to her and said you're the one on death row, you need to think about what you're doing. >> the polygraph wasn't the only revelation about darin. pardo hired a private investigator. who discovered that before the murders, darin suggested someone to rob his house so he could collect insurance money. >> darin had come up with a screwball scheme, he had already done one insurance scam. he admitted that to darlie. that was with a car. and he got the money for the car. >> in a signed affidavit, darin admitted to both the car scam and his plot for a home robbery. >> i've known darin since he was 15 years old. possibly you could get me to believe that he set it up for robbery because he talked about